TOMAH — Cindy Zahrte stoops to pick an empty cup up off the floor, hardly breaking her pace as she strides through Tomah High School's network of hallways. Zahrte, superintendent for the Tomah School District, knows her schools well, and her attention to detail isn't limited to litter. But she has bigger things on her mind these days. New contracts. Layoffs. Cutbacks. Fewer classes. Teachers have more students, less time for each task and longer days. With fewer classes to choose from, students aren't learning like they used to.